Article history: Received 10 October 2009 Available online 26 May 2010 In this article we investigate the relation between population and real wages in the Italian economy during the period 1320–1870. The main result is that the positive check is strong and statistically significant but the other equilibrating mechanism in the Malthusian model – the preventive check – based on the positive rela...

The primary goal of the GlueX experiment at Jefferson Lab is to map spectrum light hybrid mesons. GlueX, which has a linearly polarized photon beam and large acceptance for both charged neutral particles, access neutral, γp → ηπ0 p, charged, ηπ−∆++, final states. These proceedings will discuss amplitude analysis ηπ channels with focus on study production a2(1320) meson as function Mandelstam t.

We analyze the effect of redundant parity-check equations on the error-floor performance of low-density paritycheck (LDPC) codes used over the additive white Gaussian noise (AWGN) channel. Our findings show that a large number of iterative decoding errors in the [2640, 1320] Margulis code, confined to point trapping sets in the standard Tanner graph, can be corrected if only one redundant parit...